| | Hubbardston, MA | Hatfield, MA | United States |
| Population | 4,338 | 3,315 | 329,725,481 |
| Female Population | 49.3% | 52.1% | 50.5% |
| Male Population | 50.7% | 47.9% | 49.5% |
| Median Age | 42.6 | 45 | 38.4 |
| space3 | | | |
| Population - 2010 | 4,397 | 3,259 | 309,327,143 |
| Population - 2000 | 3,909 | 3,249 | 285,036,114 |
| Population - 1990 | 2,797 | 3,184 | 251,960,433 |
| Pop. 2000 to Now | 23.1% | -0.2% | 15.6% |
| Pop. 1990 to Now | 72.0% | 1.9% | 30.8% |
| space4 | | | |
| Population Density | 105.6 | 208.4 | 93.4 |
| Land Area | 41.1 | 15.9 | 3,531,905.4 |
| Water Area | 0.9 | 0.9 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Hubbardston, MA | Hatfield, MA | United States |
| Age 0 to 4 | 6.8% | 5.2% | 5.9% |
| Age 5 to 9 | 6.8% | 2.1% | 6.1% |
| Age 10 to 14 | 3.6% | 6.4% | 6.6% |
| Age 15 to 17 | 3.0% | 2.9% | 3.9% |
| Age 18 to 20 | 4.0% | 5.3% | 4.0% |
| Age 21 to 24 | 5.0% | 5.6% | 5.2% |
| Age 25 to 34 | 8.8% | 14.2% | 13.8% |
| Age 35 to 44 | 14.7% | 8.4% | 12.9% |
| Age 45 to 54 | 11.6% | 9.5% | 12.6% |
| Age 55 to 59 | 6.8% | 8.5% | 6.7% |
| Age 60 to 64 | 10.6% | 8.7% | 6.3% |
| Age 65 to 74 | 12.2% | 14.3% | 9.6% |
| Age 75 to 84 | 5.6% | 6.7% | 4.5% |
| Age 85 and over | 0.7% | 2.2% | 1.9% |
| space1 | | | |
| Race | | | |
| | Hubbardston, MA | Hatfield, MA | United States |
| White | 88.5% | 88.6% | 59.4% |
| Black | 2.2% | 0.0% | 12.2% |
| Asian | 3.1% | 1.5% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.6% | 0.4% |
| Two or More Races | 3.0% | 3.1% | 3.2% |
| Hispanic | 3.3% | 6.1% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Hubbardston, MA | Hatfield, MA | United States |
| Married Population | 58.3% | 48.7% | 49.8% |
| Currently Married | 57.4% | 48.3% | 48.0% |
| Married but Separated | 0.9% | 0.4% | 1.8% |
| Single Population | 41.7% | 51.3% | 50.2% |
| Never Married | 28.8% | 33.4% | 33.8% |
| Divorced | 9.9% | 9.6% | 10.8% |
| Widowed | 3.0% | 8.2% | 5.6% |
| space5 | | | |
| Household Size | 2.73 | 2.22 | 2.60 |
| Households | 1,586 | 1,490 | 124,010,992 |
| Family Households | 1,224 | 905 | 80,755,759 |
| Married couple, w/children | 29.2% | 25.4% | 30.5% |
| Married couple, no children | 52.8% | 47.2% | 42.9% |
| Non Family Households | 362 | 585 | 43,255,233 |
| Single householder, w/children | 8.4% | 16.8% | 15.8% |
| Single householder, no children | 9.6% | 10.6% | 10.8% |